# Ferret Tools vs Corentium Pro by Airthings

The clearest difference is rating: Ferret Tools at 3.1 against Corentium Pro by Airthings's 2.3. On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ferret Tools holds the better App Store score, 3.1 against 2.3. Both are backed by a comparable volume of ratings — 23 and 24 respectively. Written reviews point the same way: 27% of Ferret Tools's written reviews are positive against 21% of Corentium Pro by Airthings's.

Ferret Tools ships an update every 6 weeks, Corentium Pro by Airthings every 2 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Ferret Tools | Corentium Pro by Airthings |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (23 ratings)](https://appshunter.io/ios/app/ferret-tools/id1275320105/reviews)** | [2.3 (24 ratings)](https://appshunter.io/ios/app/corentium-pro-by-airthings/id1493964577/reviews) |
| Number of ratings | 23 | **24** |
| Positive reviews | **26.9% of reviews** | 20.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 31 MB | 57 MB |
| Requires iOS | 15 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Cable Ferret Company Limited](https://appshunter.io/developer/1315506831) | [Airthings ASA](https://appshunter.io/developer/1101077902) |

## What reviewers say

### Ferret Tools

[App page](https://appshunter.io/ios/app/ferret-tools/id1275320105)

View and record live video from your inspection camera. This app allows you to capture photos and videos of hard-to-reach areas. Requires a separate Ferret inspection camera to function.

**Highlights:** Live video streaming, Photo capture, Video recording, Inspection camera control

**Features:** Vision Pro support

**In-app purchases:** none


### Corentium Pro by Airthings

[App page](https://appshunter.io/ios/app/corentium-pro-by-airthings/id1493964577)

This application connects to a specific radon instrument to initiate tests, collect data, and create customized reports. It features a redesigned interface for easier navigation and an online dashboard for data storage and analysis. Professionals can add property details, photos, and secure instruments to their company.

**Highlights:** Connect to Corentium Pro Radon instrument, Start radon tests remotely, Retrieve test data, Generate custom reports, Redesigned user interface, Online dashboard for data storage, Secure instrument to company

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ferret Tools free?

Ferret Tools is free to download, with no in-app purchases.

### Is Corentium Pro by Airthings free?

Corentium Pro by Airthings is free to download, with no in-app purchases.

### Which has better reviews, Ferret Tools or Corentium Pro by Airthings?

Ferret Tools is rated higher. Ferret Tools averages 3.1 out of 5 from 23 ratings, while Corentium Pro by Airthings averages 2.3 from 24 ratings.

### Do Ferret Tools or Corentium Pro by Airthings have ads?

Neither Ferret Tools nor Corentium Pro by Airthings shows ads.

### Which is updated more often, Ferret Tools or Corentium Pro by Airthings?

Ferret Tools ships an update every 6 weeks, and Corentium Pro by Airthings every 2 months. Most recently, Ferret Tools was updated on September 25, 2026 and Corentium Pro by Airthings on September 23, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*